Corrugated-iron shears.



P. MOGORVIN.

CORRUGATED IRON SHEARS.

APPLICATION FILED NOV. 24, 1913.

1,1 12,076. v Patented Sept. 29, 1914.

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PatentedSept .29, 1914.

Application fled Icvember 84, 1018. Burial Io. 808,618.

T all whom it may concern:

Be it known that I,.FRAN I, 'MoGosvm', a citizen of the United States,.residin at Reddin in the county of Shasta and tate of Cali ornia, haveinvented new and useful Improvements in Corrugated-Iron shears, of whichthe following-is a specificat on.

This invention relates to shears which are particularly adapted for.cuttmg corrugated The object of the invention is to provide a simple andsubstantial and easily operated pair of shears, which shears areconstructed with the object in view of preventing the corru ated ironfrom becommg flattened while ing cut, and which will a so prevent anyslipping of the iron with relation to the knife and cutting e Furtherobjects w1l hereinafter appear.

The invention consists of the parts and the construction and combmationof parts as hereinafter more fully described and claimed, havingreference to the accompanyin drawings, in which %igure 1 is a plan viewof the shears showing a portion of the knife broken away. Fig. 2 1s aside elevation of the shears. F g. 3 is a cross section on X-X, Fig. 2.F1 4 is a perspective view of the removab e spacing plate.

Referrmg to the drawings, A and B ndicate a pair of plates between which1s pivotally. mounted, as at 2, a knife or cutter C. The 0 posite endsof the plates are held apart y a spacing late 3 and secured together bya bolt 4. neof the plates, as A is in this instance provided with a pairof raised portions 5 and a corresponding'intermediate depression 6, saidraised portlons and recess being of a contour which will conform withthe corrugations usually formed in corrugated iron. The plate A is alsoprovided for the purpose of orming a shearing edge for the knife C.

- In operation when it is desiredzto cut a plate of corrugated ironcrosswise of the corrugations, it is accomplished by. sli ing the platesA and B under the iron unti the raised portions and recess 6 registerwith the lower contour of same. The knife C is then depressed by thehandle 7 and is thus. caused tocutthe plate on the lined the corrugatedcutting e formed on the plate A. The corrugated e ge thus formed an theplate prevents the corrugated iron from flattening out while being cutand, furtherwith .re atiou to the e and cut edge. By referring to Fig.I'it will be s de n that "the knife is made slightly ta in bemg' narrowat the ivot point and near thehandle. T peculiar shape is provided forthe pulxose of spreading the severed ort1 on of e iron so as to preventan mdm action when the knife is returne The pivot member 2 constructedas here shown not only serves the purpose of a p1vot for the knife, butalso acts as a clam to secure the forward ends of the plates and B. Thespacing plate 3 may be changed wlth thicker or thinner plates, whendesired, for the purpose of widening or lessenmg the space etween theplates. l

A dev1ce constructed as here shown is simple and compact in constructionand is particularly suitable for cutting corrugated iron. I wish itunderstood however, that the knife 0 ma be. rovided ting edges 8 an -9,t e edge -8 being used in con u nction with the corrugated cuttin edge,while the cutting edge 9 may be use with the opposite side of the platesby inverting the a paratus, when it is desired to cut a, straig t plate,The lower face of plate B will'then act as a cutting edge. The shearsare thus applicable for various purposes, such as cutting heavy straightplates or corrugated surfaces.

The materials and finish of the several parts of the shears are such asexperience Having thus describedmy invention, what I claim and desireent isv 1. A shearing tool including a pair of to secure by LettersPatmor e, revents any of the plate with two cut spaced plates arrangedin side by side relation one of which has 'a straight uninterruptedshearing ed and the other of which has a corrugated-s aped shearingedge, and a knife pivotallymounted in the space between said plate andservi to hold the latter s aced at one end, sa1d knife bein receiv inthe space between the plates an having a shearing edge onleach sidethereof where y one shearing edge of the knife c0,-

to allow the shearing edges of the blade to oooperate with either theupper or lower re spective shearing edges the plates.

In testimony whereof I have hereunto set 16 my hand in the presence oftwo subscribing witnesses.

FRANK MoGORVIN. Witnesses:

JAMES G. Esme, JOHN Rrcnannson.

